Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Diedrich Robert P
   2. Issuer Name and Ticker or Trading Symbol
FIRST MIDWEST BANCORP INC [FMBI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP, Director of Wealth Mgmt.
(Last)
(First)
(Middle)
ONE PIERCE PLACE, SUITE 1500		 3. Date of Earliest Transaction (Month/Day/Year)
05/20/2012
(Street)

ITASCA, IL 60143		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/20/2012   F   1,547 (1) D $ 10.14 40,138 (2) D  
Common Stock               5,162 (3) I By IRA
Common Stock               9,209 (4) I By Profit Sharing Plan Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Diedrich Robert P
ONE PIERCE PLACE
SUITE 1500
ITASCA, IL 60143		       EVP, Director of Wealth Mgmt.  

Signatures

 Andrea L. Stangl, Attorney-in-fact for Robert P. Diedrich   05/22/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) On May 20, 2009 the Issuer granted the Reporting Person a Restricted Stock Award (RSA) of 9,833 restricted shares of First Midwest Bancorp, Inc. Common Stock under the First Midwest Bancorp, Inc. Omnibus Stock Incentive Plan (Plan) which were scheduled to vest in two equal annual installments on the second and third anniversary of the date of grant. On May 20, 2012, the remaining 4,916 shares of the originally granted RSAs vested, of which 1,547 shares were surrendered by the Reporting Person in order to satisfy tax withholding obligations. This form is being filed to reflect the surrender of such shares to satisfy the Reporting Person's tax withholding obligation.
(2) Between February 4, 2012 and May 22, 2012 the Reporting Person acquired 3 shares of First Midwest Bancorp, Inc. Common Stock pursuant to the First Midwest Bancorp, Inc. Dividend Reinvestment Plan. The information reported in this line item includes such shares as reported in a plan statement dated March 23, 2012.
(3) Between February 4, 2012 and May 22, 2012 the Reporting Person acquired 2 shares of First Midwest Bancorp, Inc. Common Stock pursuant to the First Midwest Bancorp, Inc. Dividend Reinvestment Plan. The information reported in this line item includes such shares as reported in a plan statement dated March 23, 2012.
(4) Between February 4, 2012 and May 22, 2012, 3 shares were sold in satisfaction of quarterly plan administration fees from the Reporting Person's First Midwest Bancorp, Inc. Common Stock under the First Midwest Bancorp, Inc. Savings and Profit Sharing Plan; and 8 shares were acquired pursuant to the Dividend Reinvestment feature of the Plan. This information is based on plan statements dated April 5, 2012 and April 24, 2012, respectively.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.